Display screen, or portion thereof, having a graphical user interface with a trading visual aid



FIG. 1 is a front view of a first embodiment for a display screen, or portion thereof, having a graphical user interface with a trading visual aid;

FIG. 2 is a front view of a second embodiment thereof; and,

FIG. 3 is a front view of a third embodiment thereof.

The broken lines are for the purpose of illustrating portions of the display screen, or portion thereof, having a graphical user interface with a trading visual aid, that form no part of the claimed design. The outer edge of the portion of the display screen, or portion thereof, is understood to be congruent with the outer edge of the graphical user interface. 

CLAIM The ornamental design for a display screen, or portion thereof, having a graphical user interface with a trading visual aid, as shown and described. 